A pendulum clock loses 24 sec a day if the temperature is `60^(@)C` and gains 8 sec a day if the temperature is `40^(@)C` .The temperature at which the clock will show correct time.

A pendulum clock loses 12 s a day if be the temperature is 40^(@)C and gains 4 s a day if the temperature is 20^(@)C . The temperature at which the clock will show correct time and the coefficient of linear expansion alpha of the pendulum shaft are, respectively

A pendulum clock loses 12 s a day if the temperature is 40^(@)C and gains 4 s a day if the temperature is 20^(@)C . The temperature at which the clock will show correct time, and the coefficient of linear expansion (alpha) of the metal of the pendulum shaft are respectively

A pendulum clock loses 12 s a day if the temperature is 40^@C and gains 4s a day if the temperature is 20^@C . The temperature at which the clock will show correct time, and the coefficient of linear expansion (alpha) of the metal of the pendulum shaft are respectively:

A pendulum clock loses 12s a day if the temperature is 40^@C and gains 4s a day if the temperature is 20^@C , The temperature at which the clock will show correct time, and the co-efficient of linear expansion (alpha) of the metal of the pendulum shaft are respectively:

A pendulam clock loses 12s a day if the temperature is 40^@C and gains 4s a day if the temperature is 20^@C , The temperature at which the clock will show correct time, and the co-efficient of linear expansion (alpha) of the metal of the pendulam shaft are respectively:

A pendulum clock is 5 seconds fast at a temperature of 15^(@)C and 10 seconds slow at a temperature of 30^(@)C . The temperature at which it gives the correct time is